This study is looking at how changes in sleep timing and morning light therapy might affect fibromyalgia symptoms. You could be eligible if you are 18 or older, have been diagnosed with fibromyalgia (using the 2016 criteria), and have access to video conferencing. You would self-administer daily light therapy using a Re-Timer device for one hour each morning and follow a fixed sleep schedule. Researchers will track your fibromyalgia symptoms using the Fibromyalgia Impact Questionnaire-Revised (FIQR) score to see if the interventions are helpful. The study aims to enroll 390 participants, but its current status is unclear.

Study design

This is an interventional study planning to enroll 390 participants. It is testing a light therapy device and a behavioral intervention.

What's involved

You would self-administer daily light therapy for one hour and follow a fixed sleep schedule. You would also keep a light log and attend remote study visits.

Compensation

Not stated in the trial record.

Follow-up

The primary outcome is measured from baseline (day 8) to post-treatment (approximately day 36).

AI-generated from the public study record. Only the study team can confirm whether you're eligible — confirm details with them before making decisions.